Description
Upgrade your 2005-2009 Ford Mustang with the MagnaFlow Competition Series Cat-Back Exhaust System, part number 16674. Designed specifically for 4.6L and 5.4L V8 engines, this system delivers a bold, aggressive exhaust note while enhancing overall performance. The kit features 3-inch mandrel-bent main piping that ensures optimal airflow, combined with straight-through mufflers and a dual split rear exit with 4-inch polished, welded double-wall angle cut tips for a sporty finish. This layout replaces the factory exhaust from near the catalytic converter to the rear, providing a significant upgrade in exhaust flow and engine sound. The system’s engineered design produces an aggressive exterior sound with a moderate interior tone, aligning with its competition-oriented intent. The direct-fit design leverages advanced 3D scanning technology for straightforward installation, making it suitable for a variety of Mustang models from 2005 to 2009. Constructed from 100% durable, corrosion-resistant stainless steel and manufactured using CNC robotic precision, this exhaust system ensures longevity and consistent performance. Backed by MagnaFlow’s limited lifetime warranty, it offers both high quality and peace of mind. Please verify local noise regulations before installation to ensure compliance. This exhaust system also provides increased horsepower and torque, making it a popular choice for Mustang enthusiasts seeking both style and performance upgrades.
Features:
- Constructed from 409 stainless steel with mandrel-bent tubing for optimal flow
- Increased horsepower and torque for improved engine performance
- Aggressive exterior sound with moderate interior noise levels
- Easy to install with direct-fit design utilizing advanced 3D scanning technology
- Sporty dual split rear exit with polished 4-inch double-wall angle cut tips
- Dyno-proven performance enhancements for V8 Ford Mustangs
- Durable and corrosion-resistant stainless steel construction
- Manufactured using CNC precision robotic technology
- Backed by MagnaFlow’s limited lifetime warranty
Fitment:
Ford Mustang Bullitt 2008
Ford Mustang Bullitt 2009
Ford Mustang GT 2005
Ford Mustang GT 2006
Ford Mustang GT 2007
Ford Mustang GT 2008
Ford Mustang GT 2009
Ford Mustang Shelby GT 2007
Ford Mustang Shelby GT 2008
Ford Mustang Shelby GT500 2007
Ford Mustang Shelby GT500 2008
Ford Mustang Shelby GT500 2009



























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